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NCP7662DR2 Datasheet(PDF) 3 Page - ON Semiconductor |
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NCP7662DR2 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 12 page NCP7662 http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (V+ = 5 V, TA = +25°C, OSC = Free running, Test Circuit Figure 2, unless otherwise specified.) Characteristics Test Conditions Symbol Min Typ Max Unit Supply Current (Note 3.) (Boost Pin OPEN or GND) RL = ∞, +25°C 0 °C v TA v +70°C –40 °C v TA v +85°C I+ – – – 80 – – 160 180 180 µA Supply Current (Boost Pin = V+) 0 °C v TA v +70°C –40 °C v TA v +85°C I+ – – – – 300 350 µA Supply Voltage Range, High (Note 4.) RL = 10 kΩ, LV Open, TMIN v TA v TMAX V+H 3.0 – 15 V Supply Voltage Range, Low RL = 10 kΩ, LV to GND, TMIN v TA v TMAX V+L 1.5 – 3.5 V Output Source Resistance IOUT = 20 mA, 0°C v TA v +70°C ROUT – 65 100 Ω IOUT = 20 mA, –40°C v TA v +85°C – – 120 IOUT = 3 mA, V+ = 2 V, LV to GND, 0 °C v TA v +70°C – – 250 IOUT = 3 mA, V+ = 2 V, LV to GND, –40 °C v TA v +85°C – – 300 Oscillator Frequency COSC = 0, Pin 1 Open or GND Pin 1 = V+ fOSC 5.0 – 10 35 – – kHz Power Efficiency RL = 5 kΩ, TMIN v TA v TMAX PEff 96 95 96 97 – – % Voltage Conversion Efficiency RL = ∞ VOUTEff 99 99.9 – % Oscillator Impedance V+ = 2 V V+ = 5 V ZOSC – – 1.0 100 – – M Ω k Ω 3. In the test circuit, there is no external capacitor applied to pin 7. However, when the device is plugged into a test socket, there is usually a very small but finite stray capacitance present, of the order of 5 pF. 4. The NCP7662 can operate without an external diode over the full temperature and voltage range. This device will function in existing designs which incorporate an external diode with no degradation in overall circuit performance. |
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